Inertial system for detecting foreign objects between...

Details Inertial system for detecting foreign objects between... Inertial system for detecting foreign objects between...

A - Human Necessities

01

D

A01D 75/18 (2006.01) G01M 99/00 (2011.01) A01F 29/16 (2006.01) G01D 21/00 (2006.01)

Patent

CA 2411829

A foreign object detector comprises an inertial sensor mounted for displacement with one of the displaceable rolls in the feed mechanism of a forage harvester. When a foreign object is forced through the rolls, the acceleration of the rolls' displacement exceeds a predetermined threshold and the detector stops the feed mechanism. Preferably, the detector's sensor is a microswitch having an inertially-actuable lever and which is mounted for displacement with the upper feed roll. More preferably, the detector's circuitry ties into existing metal detector circuitry for reducing cost and complexity, while being easily retro-fitted into existing forage harvesters. 25

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